| Kuskokwim Bay | |
| Location: | Alaska, United States |
| Type: | Bay |
| Etymology: | Kuskokwim River |
| Rivers: | Kuskokwim River |
| Pushpin Map: | Alaska |
Kuskokwim Bay is a bay in southwestern Alaska, at about . It is about 160km (100miles) long, and 160km (100miles) wide.
The Kuskokwim River empties into Kuskokwim Bay. The bay got its name from the river. The largest community on the bay is the city of Quinhagak.